Sucker-rod elevator



Feb. 9 1926.

w. F. CORNELIUS SUCKER ROD ELEVATOR Filed March 16 1925 iwz f n/r o ag Patented Feb. 9, 1926.

UNITED STATES PATENT OFFICE.

WESLEY F. CORNELIUS, OF WI-II'ITIER, CALIFORNIA.

STICKER-ROD ELEVATOR.

Application filed March 16, 1925. Serial No. 15,974.

To all whom it may concern:

Be 1t known that I, WESLEY F. CORNELIUS,

a citizen of the United States, residing at one of the joints thereof, to provide readily 17 releasable self-closing latching means for Securing the elevator to the sucker rod, and further to provide a device of thecharacter referred to that will be effective in minimizing the time and labor involved in applying the elevator to the sucker rod and likewise in releasing and disengaging the elevator from said rod.

With the foregoing and other objects in view, my invention consists in certain novel features of construction and arrangement of parts that will be hereinafter more fully described and claimed and illustrated in the accompanying drawings, in which:

Fig. 1 is a perspective view of an elevator of my improved construction and showing a section of sucker rod adjacent thereto.

Fig. 2 is an enlarged vertical section taken approximately on the line 2-2 of Fig. 1 and showing the elevator in engagement with a sucker rod.

Fig. 3 is a view looking against the underside of the block or body of the elevator, with the under plate. thereof removed.

Fig. 4 is an enlarged detail section taken on the line 4-4 of Fig. 1.

Fig. 5 is a perspective view of one of the latching jaws forming a part ofmy improved elevator.

Referring by numerals to the accompanying drawings, which illustrate a practical embodiment of my invention, 10 designates a metal block through the center of which is formed a vertically disposed aperture 11, of suflicient size to receive a sucker rod and the'upper portion of this aperture gradually increases in diameter toward the top of the block, thereby forming a curved seat 12, upon which is adapted to rest the correspondingly curved tapered portion 13, that is formed adjacent to the end of a standard sucker rod R.

Formed in the front portion of the block- 10, is a tapered mouth or opening 14, that communicates with the opening 11 and its tapered upper portion 12. This mouth or opening 14 is vertically disposed, so that when the block is moved in a horizontal di-i rection toward the sucker rod, the latter will pass through the mouth or opening 14, until it rests in the opening 11.

Formed integral with, or fixed to the sides of block 10 are trunnion's 15, upon which are journalled loops 16, that. are formed on the lower ends of the legs of an elongated bail ltemovably secured to the under side of block 10 is a plate 18, in which is formed a a slot 19 that coincides with openings 14 and 11, and formed in the under side of block 10 beneath this plate is a substantially circular groove 20, the front portion of which communicates with the opening 14 directly...

in front of opening 11.

Arranged for sliding movement w1th1n the 'slde portions of this slot 20, are arcuate latching members 21, the forward ends of i which are bevelled as designated by 22, and.

the rear ends of said members being provided with plates23 that are adaptedto be engaged by the thumb and forefinger when said latching members areactuated to release a sucker rod from the block; These plates 23, normally occupy a recess 24 that is formed in the rear position of block 10, l

and in order to limit the movement of said plates toward each other when they are actuated to release a sucker rod, a lug 25 is ends 27, and occupying this slot is a flat spring or a leaf spring 28, the ends of which occupy notches 27 that are formed in the inner faces of the arcuate latch members 21. The central portion of this spring 28 bears on a lug 29 that is formed at the center of slot 26.

This spring normally exerts pressure against the arcuate members 21, to move, the same. forwardly through the slot 20, so

that the bevelled forward ends of the latching-members project into opening'19 immediately in front of the vertical opening 11, and thus when a sucker rod occupies the "111 opening ll.

positioned in the 'opening 11, sprl so that the latter enters month. or opening 19 and as the-rod bears against the levelled tront ends 22, of the latching members 21, the resistance offered by spring 28 will be bers rearwardly thronghl slotQtl a snili-cient ends of the latching; inenihers soon as the rod forces the latching members forwardly through slot 20, so that the forward ends of said in in nt 918 are positioned immediately there-d a ,d time the elevator block and rod are tei nporarily connected.

Th eh d therehy l manner lead up- ;i it 1s dothe and the rod en lowered a one i L, l bail l7. and who -..s-f:o.imert aw elevator fro (d s clier rod, plates 9?) are en k thumb and forefinger and as said tor n members 21 are drawn reaiwardly :nced to a minimum.

thetront and rear porso that they balance v eend'in' thetrnnnions 15 dly from the up; portions of the the block, the latter normally 00- a horizontal position between the on oier lower ends of hail 17 and thus it is a coin-f. paratively easy inatterto more the block into and out of engagement with a slicker rod.

' The tapered seat 12 at the upper end of open "the (01 esponding'ly curved portion or the elevator that is reladeonstrnotion of the are forced toward each other, the

' i'ent distance to per-' arranged flatspring having i 11, is purposely curved so as to fit the sa ope .1

capable of heinn;

to H

,3 [hilt minor she-noes" elevator may be made and substituted for those herein shown and described, without departing from the spirit of my invention,

the scope of which is set forth in the ap- 7 I .and afflat spring arranged so' that itscends anee topernnt the sncher rod to pass. 1 rest' directly engage the intermediate portionso'f said latching members for normally forcing theirjforward ends into said sucker rod-receiving opening. v v

' 2. In a sucker rod elevator, a block provided with verticallydisposed' sucker rodrece'iving opening, that is'provided at its updirectly engage the intermediate portions of said latching'ine nbers for normally forcing heirf forward ends llltOSiIlCl sucker rod-re- "ceiving opening below said tapered "seat."

3. In a sucker rod elevator, a block provided with a sucker rod-receiving opening,

a pair of arcuate latching members arranged for operation on said block, a transversely arranged flat sprlng having ltsends 1n d1- rect engagement with-the intermediate portions of said latchingmembers so as to'force the forward ends thereof into saidsneker' rod-receiving opening and ntegral meahs on the rear ends of said latching members whereby the same maybe manually engaged and manipnlated so as to withdraw were, "ward ends thereof from said sucker'rod-re ceiving, opening. f I

' 4:. In a sucker-rod elevator, a block providedwith a sucker rod-receivingopening. apair-of areuatelatehing members arran for operation on said hloelz, a transversely ts ends bearing in notches in said latching members so as to force the "forward ends thereof into said sucker rod-receiving opening, means on the rear ends of said latching members whereby =e may be manually engaged and ma- 'nipnlated so to withdraw the forward ends tl'iereof from said sucker rod-rece1v1ng ward movement. of said latching members.

5.111 a sucker rod elevator, a block provided with sticker rod-receiving opening,

a pair of arcnate latching members arranged ng, and a stop for limiting the rearon on said block, a transversely,

132111 having ts ends bearing whereby,v

the same may be manually engaged and manipnlated so as to withdraw the forward ends thereof from said sucker rod receivin opening, a stop for limiting the rearwar movement of said latching members, and a bail pivotally connected to the sides of said block in a plane above the center thereof.

6. In a suckeriod elevator, a block provided with a vertically disposed sucker rod opening, a pair of arcuate latching members arranged for operation on said block, a flat spring arranged in a recess in said block with its ends'directly engaging the latching members for normally forcing their forward ends into the sucker rod-receiving opening and the central portion of which springhas bearing on a part of said block.

7 111 a suckerrod elevator, a block provided with a vertically disposed sucker rod opening, a pair of arcuate latching members arranged for operation on said block, a flat spring arranged in a recess in said block with its ends directly engaging the latching members fornormal y forcing their forward ends into the sucker rod-receiving opening, the central portion of which spring has bearing on a part of said block and lugs on the rear portions of said latching members WESLEY F. CORNELIUS. 

